:root {
    --color-primary: #1a73e8;
    --color-primary-dark: #0d47a1;
    --color-danger: #d93025;
    --color-bg: #f5f6f8;
    --color-card: #ffffff;
    --color-border: #dde1e6;
    --color-text: #1f2328;
    --color-muted: #6b7280;
    --radius: 12px;
    --shadow: 0 1px 3px rgba(0, 0, 0, 0.08), 0 1px 2px rgba(0, 0, 0, 0.06);
}

* { box-sizing: border-box; }

html, body {
    margin: 0;
    padding: 0;
    background: var(--color-bg);
    color: var(--color-text);
    font-family: -apple-system, BlinkMacSystemFont, "Hiragino Sans", "Segoe UI", Roboto, "Noto Sans JP", sans-serif;
    font-size: 16px;
    line-height: 1.6;
    -webkit-text-size-adjust: 100%;
}

.container {
    max-width: 480px;
    margin: 0 auto;
    padding: 16px 16px 40px;
}

.container.wide {
    max-width: 960px;
}

.app-header {
    background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
    color: #fff;
    padding: 20px 16px;
    text-align: center;
}

.app-header h1 {
    margin: 0;
    font-size: 1.15rem;
    font-weight: 700;
}

.app-header p {
    margin: 4px 0 0;
    font-size: 0.85rem;
    opacity: 0.9;
}

.card {
    background: var(--color-card);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 20px;
    margin-bottom: 16px;
}

.field {
    margin-bottom: 18px;
}

.field label {
    display: block;
    font-weight: 600;
    margin-bottom: 6px;
    font-size: 0.92rem;
}

.field .hint {
    color: var(--color-muted);
    font-size: 0.8rem;
    margin-top: 4px;
}

input[type="text"],
input[type="password"],
input[type="date"],
input[type="time"],
select,
textarea {
    width: 100%;
    padding: 14px 12px;
    font-size: 1rem;
    border: 1px solid var(--color-border);
    border-radius: 8px;
    background: #fff;
    color: var(--color-text);
    appearance: none;
}

input:focus, select:focus, textarea:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(26, 115, 232, 0.15);
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    padding: 14px 16px;
    font-size: 1rem;
    font-weight: 700;
    border-radius: 10px;
    border: none;
    cursor: pointer;
    text-decoration: none;
    text-align: center;
}

.btn-primary { background: var(--color-primary); color: #fff; }
.btn-primary:active { background: var(--color-primary-dark); }
.btn-secondary { background: #eef1f5; color: var(--color-text); }
.btn-danger { background: var(--color-danger); color: #fff; }
.btn-block { display: block; }
.btn-sm { padding: 8px 12px; font-size: 0.85rem; width: auto; }

.btn:disabled { opacity: 0.5; cursor: not-allowed; }

.btn-row {
    display: flex;
    gap: 8px;
}
.btn-row .btn { flex: 1; }

.radio-group {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.radio-option {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px;
    border: 1px solid var(--color-border);
    border-radius: 8px;
}

.radio-option input { width: auto; }

.notice-box {
    background: #fff8e1;
    border: 1px solid #ffe082;
    border-radius: 8px;
    padding: 14px;
    font-size: 0.85rem;
    color: #7a5900;
    margin-top: 20px;
}

.facility-info {
    background: #eef4ff;
    border-radius: 8px;
    padding: 14px;
    margin-bottom: 18px;
    font-size: 0.9rem;
}

.facility-info dt { font-weight: 700; color: var(--color-primary-dark); }
.facility-info dd { margin: 0 0 8px; }

.alert {
    padding: 12px 14px;
    border-radius: 8px;
    margin-bottom: 16px;
    font-size: 0.9rem;
}
.alert-success { background: #e6f4ea; color: #137333; }
.alert-error { background: #fce8e6; color: #c5221f; }
.alert-info { background: #e8f0fe; color: #1967d2; }

table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.9rem;
    background: #fff;
}
table th, table td {
    padding: 10px 8px;
    border-bottom: 1px solid var(--color-border);
    text-align: left;
}
table th { color: var(--color-muted); font-weight: 600; font-size: 0.8rem; }

.list-buttons {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.list-button {
    display: block;
    background: #fff;
    border: 1px solid var(--color-border);
    border-radius: 10px;
    padding: 14px;
    text-decoration: none;
    color: var(--color-text);
}
.list-button strong { display: block; color: var(--color-primary-dark); }
.list-button span { font-size: 0.8rem; color: var(--color-muted); }

.badge {
    display: inline-block;
    padding: 2px 8px;
    border-radius: 999px;
    font-size: 0.75rem;
    font-weight: 700;
}
.badge-absent { background: #fce8e6; color: #c5221f; }
.badge-scheduled { background: #e6f4ea; color: #137333; }

.top-nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 16px;
}
.top-nav a { color: var(--color-primary); text-decoration: none; font-size: 0.9rem; }

.empty-state {
    text-align: center;
    color: var(--color-muted);
    padding: 30px 10px;
}

.spinner {
    display: inline-block;
    width: 16px;
    height: 16px;
    border: 2px solid rgba(255,255,255,0.4);
    border-top-color: #fff;
    border-radius: 50%;
    animation: spin 0.7s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

.hidden { display: none !important; }

footer.app-footer {
    text-align: center;
    color: var(--color-muted);
    font-size: 0.75rem;
    margin-top: 24px;
}

@media (min-width: 600px) {
    body { font-size: 16px; }
}